Coke-drawing machine.



No. 727,790. PATENTED MAY 12; 1903.

J.- A. HEBB. COKE DRAWING MACHINE.

APPLICATION FILED 001'. 5,1900. no MOD L.- {sums-sum .1.

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PATENTED MAY 12, 1908.

J. A.'HEBB.

v COKE DRAWING MAOHINE.

APPLICATION FILED OUT. 6, 1900.

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No. 727,790. PATENTED MAY 1-2, 1903.

- J. A. HEBB.

COKE DRAWING MACHINE.

APPLICATION FILED OCT. 5, 1900.

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No. 727,790. 'PATBNTED MAY IZ, 1903.

' J; A. "HEBB.

00KB DRAWING MACHINE, APPLICATION FILED 0015, '1900. m) MQDBL. I 4 sngn'rwsnnm' 4.

, I" Wm UNITED STATE-s PATENT Patented May 12, 1963.

OFFICE.

JOHN A. HEBB, OF 'SMOOK, PENNSYLVANIA, ASSIGNOR TO HEBB COKE DRAWER COMPANY, OF UNIONTOWN, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIAY] COKE-DRAWING: MACHINE],

SPECIFICATION forming part of Letters Patent No. 727,790, dated May 12, 1903. Application filed October 5,1900. semi No. 32,100. a. model.) I

To aZZ whom it may concern.-

Be it known that 1, JOHN A. HEBB, a citizen of the United States of America, and a resident of Smock, county of Fayette, State of Pennsylvania, have invented certain new and useful Improvements in Coke-Drawing. Machines, of which the following is a specification, reference being had to the accoin panying drawings, forming part of this specification, in which Figure 1 is a view in side elevation, partly,

in section, of a coke-drawing machine em-. bodying the features of my invention and showing the machine in position for operation with relation to a coke-oven.

Fig. 3 is a plan view of Fig. 1.

rake thereon.

rake. ing the beam in the act of entering the oven,

the rake being folded'up underneath by contact with the coke. Fig. 7 is a similar view showing the beam in position to draw, with in positions of rest, to impart inward travel,

and to impart outward travel, respectively.

Fig. 12 is a cross-sectional detail view indiinterfit and make driving contact with the cated by the line XII XII of Fig. 7

My invention relates to mechanical means for drawing coke from the oven, and relates more particularly to the rake-beam, therake,

and the means for operating these parts. v

In general the machine consists of a beam provided at the end with a rake which-is Fig. 2.is' a detail view of the raising and lowering lever. Fig. 4 is an. enlarged detail view, in side elevation, of the forward end of the rake-beam with the hinged Fig. 5 is a face view of the Fig. 6 is a view similar to Fig. 3, show-f While I havefillustrated my invention as mounted upon and adapted to 'a traveling foundation provided with conveying, rotating, and various other manipulating mechansents the foundation of a portable carriage,-

upon which is supported for the purpose of providing lateral range a turn-table B, upon which are carried the various operative and manipulative portions of the machine. At

'anysuitable location on the carriage is mounted a power-shaft 2,-driven-by anengine (not shown')-or any suitable prime mover; from which shaft through bevel-gearing 3 3, ,central shaft 4, and gearing 5 5 motion is trans mitted to the constantly-revolving shaft 6, and from it through pinion-gearing] 7 to shaft 8. These shafts 6 and 8 are located in suitable bearings. They constantly rotate in opposite directions, and upon the shafts are mounted longitudinally-movable friction or other clutches 9 10in spline engagement with the shafts by keys 11, Fig. 11. A shifting lever 12, pivoted at 13, engages the clutches and is operated through rod 14 and its connections and hand-lever 15 by the operator, either to hold both clutches out of engagement, as in Fig. 9, or either of them, in engagement, as in Figs. 10 and 11.

Loosely mounted on shafts 6 and 8 are pinions 16 17-, provided with portions adapted to clutches 9 10, both pinions intermeshing with a driven wheel 18, mounted on shaft19, provided with pinions 20, in engagement with the teeth of a rack 21, secured to-the fork- ,beam 22. Through such mechanism either forward or back movement may be imparted to the rake-beam by throwing -either of'the clutches into gear, or it may be allowed to remain stationary by leaving the mechanism in a midway position, or by rapidly changing the connection from one clutch to the other a rapid reciprocating action may be imparted to the beam, and all of these movements may be imparted by the operator at will through the clutch-lever 15. At its forward end is pivotally secured to the beam at 23 the rake 24, which is of any suitable construction, although I have secured good results from a rake provided with alternating teeth of varying length. The head 25 of the rake, Fig. 2, is adapted to bear upwardly against a limiting extension 26 of the beam, whereby it is braced in the distended position, and to the head is secured a curved arm 27, passing over and back of the pivotal joint 23, where it is connected at 28 and through connection 29 to a tension-rod 30. This rod extends longitudinally of the beam in suitable bearings 31 to within a short distance of its rear end, where it isconnected to a tension-spring 32, by which construction the spring is placed at a point remote from the injurious action of the heat of the oven. By this means a constant tension is exerted on the rake-head by which it is normally held in an extended position, while it is free to fold inwardly and upwardly against the beam in entering the limited vertical space at the door of the oven, as clearly shown in Fig. 6. When the beam has been advanced sufliciently far into the oven to engage a section of the coke, the end of the beam is raised, permitting the rake to spring out, when it is lowered upon the top of the coke. The operator then imparts to the beam a reciprocating motion by rapid alternate engagement of the clutches, throwing the upper end of the rake forward and back, when the points by reason of the flexible joint 23 will rapidly Work downwardly into the crevices of the coke for the full depth of the tines, owing to the weight of the rake and beam, when the operator will throw the lever 15 forward, engaging wheel 17 and through pinions 18 and 20 and rack 21 imparting outward motion to the beam. The rake will draw a section of the coke outwardly through the oven-door, discharging it into the chute 33, from which it is conveyed to any point of delivery. The forward end of the beam is raised and lowered by the operator through handlever 34 and upright bars 35, carrying a roller 36, upon which the beam rests, and an upper roller 41, between which the beam travels in or out, the lever 34 being capable of being set at any desired angle or held at will during the inward or outward travel of the beam. Inward movement of the beam is imparted by reversing the lever 15, throwing clutch 9 into engagement, when the operation is repeated and continued until the oven is drawn.

For the purpose of engaging the finer coke the rake is provided with an apron 37 of sheet metal loosely and slidingly mounted by means of bolts 38, passing through slots 39, and retaining-clips 40, passing around the intermediate tines upon the back face of the fork. The apron will be forced upwardly to the top when working in large coke, but will drop by gravity and engage the finer particles on the floor in the manner of a hoe.

The advantages of my invention will be appreciated by those skilled in the art, and while I have illustrated it as embodied in combination with certain other supporting, manipulating, and transporting apparatus it is obvious that such parts may be changed or varied from or entirely eliminated without departure from my invention, since I do not claim such parts broadly.

What I do claim, and desire to secure by Letters Patent, is

1. In apparatus for drawing coke, the combination with a reciprocating beam, of a pivotally-attached rake adapted to be folded backwardly by contact with the coke, a spring device located remotely from the rake, and connections between the spring device and rake by which the rake is extended.

2. In apparatus for drawing coke, the combination with a reciprocating beam, of a pivotally attached rake adapted to be folded backwardly by contact with the coke, and spring controlled means located remotely from the rake for normally holding it extended.

In apparatus for drawing coke, the combination with a reciprocating beam, of a pivotally-attached rake adapted to be folded backwardly by contact with the coke, provided with an apron, and spring-controlled means for normally holding the rake extended.

4. In apparatus for drawing coke, the combination, with a reciprocatingbeam and means for raising and lowering the end of the beam, of a rake pivotally attached to the end of the beam, adapted to be folded backwardly by contact with the coke, and spring-controlled means for normally holding the rake-head extended.

5. In apparatus for drawing coke, a beam provided with a pivotal bearing and a limiting-shoulder at the forward end, a rake pivotally secured in the bearing, adapted to be depressed backwardly by contact with the coke, and spring connections adapted to normally hold the rake in an extended position against the limiting-shoulder, substantially as set forth.

6. In apparatus for drawing coke, a beam provided with a pivotal bearing and a limiting-shoulder at the forward end, a rake pivotally secured in the bearing adapted to be depressed backwardly, an arm extending from the rake-head, a spring connected to the rear end of the beam, and intervening connections between the spring and the arm, substantially as set forth.

7. In apparatus for drawing coke, the combination with a reciprocating beam, of a pivotally-attached rake, adapted to be folded backwardly by contact with the coke, means for normally holding the rake extended, and an apron slidingly mounted on the inner side of the rake.

8. In apparatus for drawing coke, the combination with a beam provided with a rack and a pivotally-attached rake adapted to be folded backwardly by contact with the coke, and spring-controlled means for normally holding the rake extended; of a pinion in engagement with the rack and means for alternately rotating the pinion.

9. In apparatus for drawing coke, the combination with a beam provided with a rack and a pivotally-attached rake adapted to be folded backwardly by contact with the coke, and means for normally holding the rake extended; of a pinion in engagement with the rack, a driving-shaft therefor provided with a second pinion,two driving-pinions loosely mounted on oppositely-rotating shafts and in engagement with such second pinion, and clutch devices in spline engagement with the shaft, with means for operatively connecting the clutch devices with the driving-pinion.

10. In apparatus for drawing coke, the combination of a beam, means '-for imparting a reciprocating motion to the beam, a pivotallyattached rake-head adapted to be depressed backwardly by contact with the coke, and an apron slidingly mounted on the rake, substantially as set forth.

11. In apparatus for drawing coke,the combination of a beam, means for raising and lowering the beam, means for imparting a reciprocating motion to the beam, a pivotally attached rake-head adapted to be depressed backwardly by contact with the coke, with means for extending the rake-head, substantially as set forth.

12. Apparatus for drawing coke, consisting of a rotatable supporting-platform, a reciprocating beam mounted thereon, means for raising and lowering the beam, a rake pivotally attached to the end of the'beam adapted to be folded backwardly by contact With the 7 zontal movement while the head is in engagement with the coke in the oven.

Signed'at Pittsburg, Pennsylvania, this 3d day of August, 1900.

JOHN A. HEBB. Witnesses:

PETER J. EDWARDS, O. M. CLARKE. 

